Improvement in ore-washers



E. PAUL.

Ore-Washers.

Patented March 17. I874.

UNITED STATES PATENT QFFIOE.

EDW ARD PAUL, OF SYLVAN LAKE, NEW YORK.

IMPROVEMENT m ORE-WASHERS.

Specification forming part of Letters Patent No. 148,622, dated March17,1874; application filed February 3,1874.

To all whom it may concern:

Be it known that I, EDWARD PAUL, of Sylvan Lake, in the county ofDutchess and State of New York, have invented an Improvement inOre-Washers, of which the following is a specification The object ofthis invention is to save the fine portions of the ore that pass awayfrom the large rotary or other washers with the water that carries offthe earth, sand, and other foreign matters from such ore: Thisimprovement is especially valuable with hematite iron ores that aremixed with sand and clay as they are quarried, and in which the fineportions of the ore usually have passed away with the water employed towash the larger lumps.

Ore-washers have been made in which the ore is delivered upon-an inclineand passes to a rotary screen, and then runs upon an incline, as. in thePatents No. 132,642 and No. 108,962, and the chute through which thewater and refuse matter pass has been provided with a perforated bottomand inclined grate, as in my Patent No. 146,275,- and with a grate inthe bottom of the chute, and an inclined grate, as in the Patent No.132,642.

My present invention is made for the purpose of delivering the pieces ofore that are detained upon the perforated bottom in the line of thetrough or chute, instead of throwing them off laterally. Thereby the orewill be more freely delivered, and there will be abetter opportunityforthorough washing and subsequent draining than in cases where themovement of the pieces of ore is obstructed, either by a revolvingscreen or by a lateral delivery over an inclined grate.

In the drawing, Figure 1 is a longitudinal section of the apparatus, andFig. 2 is a crosssection of the same.

The trough. a brings the muddy water and fine ore to the perforatedplate I), that is in the bottom of the trough, and through this platethe said water runs into the trough or delivery-chute d below. At theend of the perforated plate I) is the grate e, that is of suflicientarea to receive and contain the ore that accumulates from time to timeand previous to removal. The sides f of the trough or hopper serve toretain the ore upon the grate, and also to prevent water supplied by thepipe 9 splashing over. This supply of water serves the twofold purposeof washing the ore as it passes upon such grate e, and of moving the orealong upon the grate toward the lower end thereof. The platformlreceives the ore previous to delivery into carts or cars. This platformshould have a rim, i, around it, and be placed at an inclination tothrow any water that may drain from the ore back through the grate.

A hoe or scraper may be used from time to time to draw the fine ore fromthe grate e to EDWARD PAUL.

Witnesses:

GEROME WILLIAMS, JOHN S. VAN WYcK.

